//12.
#include<stdio.h>

int main()
{	
	unsigned int n = 0;
	unsigned int m = 0;
	unsigned int src = 0;
	printf("输入一个数:");
	scanf("%u",&n);

	src = n;
	while(src)
	{
		m = m * 10 + src % 10;
		src /= 10;
	}
	if(m == n)
		printf("%u是回文数！\n",n);
	else
		printf("%d不是回文数！\n",n);	
	return 0;
}
